Slide Glass Cassette Detection via Reflected Light Scanning
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Solution Overview
Problem
The existing slide glass conveyance devices face challenges in accurately determining the holding position and state of slide glasses in cassettes, leading to unnecessary conveyance work and prolonged image acquisition times due to varying slide glass positions and potential misalignment.
Innovation Solution
An image acquisition device and method that utilize inspection light scanning and reflection to detect the presence or absence of slide glasses, generating holding information by analyzing the intensity of reflected light, with optional correction using reference signals and simplified optical systems to enhance accuracy and reduce device size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Area of moving object
If a single wide-angle lens is used to capture the entire soccer field, then the field of view is sufficient, but the image quality and resolution are insufficient for analyzing player movements and ball positions
Solution Approach 1:
The patent divides the imaging system into multiple separate cameras positioned at different locations around the field. Each camera captures a specific region with high resolution, and the images are later synthesized to create a complete view of the entire soccer field with both wide coverage and high detail for player and ball analysis.
2Measurement precision
If multiple cameras are deployed to improve image quality, then resolution increases, but the system complexity and cost increase
Solution Approach 1:
The patent combines images from multiple cameras through image synthesis technology to create a single comprehensive view. This merging process integrates the high-resolution data from multiple sources while managing system complexity through coordinated control and processing of the combined image data.
Solution Approach 2:
The imaging system is designed to serve multiple functions simultaneously: capturing player movements, tracking ball position, monitoring referee actions, and providing overall field coverage. The same multi-camera setup and image synthesis technology handle all these different analytical needs through a unified system.
3Measurement precision
If multiple cameras are used to capture different regions, then image quality improves, but synchronization difficulty and processing complexity increase
Solution Approach 1:
The system employs synchronization control mechanisms that monitor and adjust the timing of multiple cameras to ensure they capture images at the same moment. This feedback-based synchronization maintains temporal consistency across all camera inputs, which is critical for accurately analyzing player movements and ball positions across different field regions.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach allows for precise determination of slide glass holding positions and states, reducing unnecessary conveyance work and shortening image acquisition times, while maintaining accuracy and avoiding device complexity.
Implementation Method 1
inspection light from the light source toward the cassette holding the slide glasses in a plurality of stages in the predetermined arrangement direction is scanned in the arrangement direction, and the inspection light is reflected by the light reflection unit. The light detection unit detects the reflected light including the inspection light reflected by at least one of the light reflection unit, the cassette, and the slide glass
Implementation Method 2
At a position in which the slide glass is present, an intensity of the reflected light detected by the light detection unit becomes small since the inspection light is scattered by the slide glass and only a part of the inspection light is detected as the reflected light by the light detection unit
Data Source
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AI summary
An image acquisition device (11) includes a cassette mounting unit (21) in which a cassette is detachably mounted, the cassette (41) holding the slide glasses (G) in a plurality of stages in a predetermined arrangement direction, a light source (76) that emits inspection light (L1) toward the cassette (41), a scanning unit (72) that performs scanning_with the inspection light (L1) in the arrangement direction, a light reflection unit (73) that is disposed on the back surface side of the cassette (41) and reflects the inspection light (L1) emitted from the light source (76), a light detection unit (77) that detects reflected light (L2) including the inspection light (L1) reflected by at least one of the light reflection unit (73), the cassette (41), and the slide glass (G), and outputs a detection signal, and an information generation unit (74) that generates holding information on a holding position and/or a holding state of the slide glass (G) held in the cassette (G) on the basis of the detection signal.